Well, I wouldn't limit the reason they survived to just that; there is a good bit of Holy Spirit action involved, too! But, a good point nonetheless.
Intercession is available to all. Let's make use of it for the good of our neighbors. Intercede on their behalf—not to "make America great again" or "keep America great," whatever that means (see here). But so that they might enjoy the presence and peace of God in their lives.